A normally distributed population has a mean of 210 grams and a standard deviation of 20 grams. What is the probability of a randomly selected element having a weight between 245 grams and 255 grams?
A normally distributed population has a mean of 210 grams and a standard deviation of 20...
normally distributed, with a mean of 431 grams and a standard deviation of 29 grams. If you pick 10 fruit at random, what is the probability that their mean weight will be between 405 grams and 453 grams P(405<¯x<453)=P(405<x¯<453)= Incorrect
A normally distributed population has a mean of 600 and a standard deviation of 60. a. Determine the probability that a random sample of size 25 selected from this population will have a sample mean less than 579. b. Determine the probability that a random sample of size 16 selected from the population will have a sample mean greater than or equal to 636.
The weight of the potatoes is approximately normally distributed with population mean μ=10 ounces and population standard deviation σ=1.5 ounces. Use 68-95-99.7 rule to answer the questions below: a). What is the probability that a randomly selected potato weighs over 13 ounces? b). What is the probability that a randomly selected potato weighs below 8.5 ounces? c). What is the probability that a randomly selected potato weighs between 8.5 ounces and 10 ounces? d).What is the probability that a randomly...
A normally distributed population has a mean of 500 and a standard deviation of 80. a. Determine the probability that a random sample of size 25 selected from this population will have a sample mean less than 463 . b. Determine the probability that a random sample of size 16 selected from the population will have a sample mean greater than or equal to 538. A company makes windows for use in homes and commercial buildings. The standards for glass...
A population is normally distributed with a mean of 100 and a standard deviation of 10, for samples of size 25, what is the probability of randomly sampling and getting a sample mean of 103 or more?
A normally distributed population has a mean of 475 and a standard deviation of 48. a. Determine the probability that a random sample of size 9 selected from this population will have a sample mean less than 451. b. Determine the probability that a random sample of size 16 selected from the population will have a sample mean greater than or equal to 498. a. P(X<451) = (Round to four decimal places as needed.) b. P(X2498) = 1 (Round to...
A particular fruit's weights are normally distributed, with a mean of 711 grams and a standard deviation of 16 grams. If you pick 6 fruit at random, what is the probability that their mean weight will be between 696 grams and 705 grams .as
A particular fruit's weights are normally distributed, with a mean of 790 grams and a standard deviation of 21 grams. If you pick 14 fruit at random, what is the probability that their mean weight will be between 773 grams and 794 grams
A particular fruit's weights are normally distributed, with a mean of 214 grams and a standard deviation of 21 grams. If you pick 2 fruit at random, what is the probability that their mean weight will be between 187 grams and 198 grams
An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 lb and 191 lb. The new population of pilots has normally distributed weights with a mean of 139 lb and a standard deviation of 28.4 lb. a. If a pilot is randomly selected, find the probability that his weight is between 130 lb and 191 lb. The probability is approximately 0.5908. (Round to four decimal places as needed.) b. If 36...